*{
    padding: 0;
    margin: 0;
}

ul{
    list-style: none;
}

input[type='checkbox']{
    width: 15px;
    height: 15px;   
    vertical-align: middle;
}

body{
    font-size: 18px;
    color: #434544;
}

.contonter{
    overflow: hidden;
    width: 1200px;       
    margin: 10px auto; 
    border: 2px solid #E2E2E2;  
    box-sizing: border-box;  
    border-radius: 10px;
    padding: 20px;
}

header{
    width: 100%;
    height: 50px;
}
 
header input{
    width: 100%;
    height: 100%;
    padding-left: 10px;
    box-sizing: border-box;        
    outline: none;
    border: 1px solid #DFDFDF;
    border-radius: 5px;
}

section ul{
    margin: 30px 0;
    border: 1px solid #E9E9E9;
    border-radius: 5px;    
}

section ul li{
    position: relative;
    height: 45px;
    line-height: 45px;
    padding: 0 10px;
    box-sizing: border-box;
    border-bottom: 1px solid #E9E9E9;  
    border-radius:5px;  
}

section ul:nth-last-child(1){
    border-bottom: none;
}

section ul li:hover{
    background-color: rgb(235, 234, 234);        
    cursor: pointer;
}

section ul li input{
    margin-right: 10px;
}

section ul li button{
    position: absolute;
    top: 10px;
    right: 10px;
    height: 30px;
    padding: 0 10px;
    line-height: 30px;
    color: #fff;
    background-color: #D5514C;
    border-radius: 5px;
    border: none;
    cursor: pointer;
}

footer{
    width: 100%;
    height: 50px;
    float: left;
    line-height: 50px;
}

.footer_left{    
    float: left;
    padding-left: 10px;
    box-sizing: border-box; 
}

.footer_left input{    
    margin-right: 20px;    
}

.footer_right{
    float: right;
}
    
.footer_right button{
    padding: 0 20px;
    height: 40px;
    line-height: 40px;
    color: #fff;
    background-color: #D5514C;
    border-radius: 5px;
    border: none;
    cursor: pointer;
}